Flowmeter calibration device

Abstract

The utility model discloses a flowmeter verification device, and belongs to the technical field of verification. The device mainly comprises a fixed frame; the calibration mechanism is installed at the upper end of the fixing frame, and the calibration mechanism is provided with a water pipe; the adjusting mechanism is mounted on the water pipe and comprises a base, a water inlet pipe, a water outlet pipe and a water outlet pipe; the valve rod is mounted on the base, and one end of the valve rod penetrates through the water pipe and extends into the water pipe; the valve plate is mounted at one end of the valve rod; the arc plate is installed in a sliding groove in the other end of the valve rod, and the sliding groove is formed in the arc plate; and the positioning bolt is arranged on the base. According to the flowmeter verification device, the adjusting mechanism is arranged, so that the effect of adjusting the flow is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of verification, in particular to a flowmeter verification device. BACKGROUND

[0002] The flowmeter verification device is a professional equipment specially used for verifying and calibrating the measurement accuracy and performance of a flowmeter (such as a flow sensor or a flow transmitter). The core function thereof is to compare the measurement result of the flowmeter with a known-accuracy flow standard value, so as to judge whether the error range of the flowmeter meets the requirements and to ensure the accuracy and reliability of the flowmeter in actual application.

[0003] For example, the patent with the publication number CN220120213U discloses a gas flowmeter verification device. The gas flowmeter verification device can automatically detect whether the speed fan is running by means of the laser detector, the wire tube and the remote transmission device. When the speed fan stops running due to long-time gas erosion, the laser detector detects the information, which is then transmitted to the remote transmission device through the wire tube. The remote transmission device sends a signal to the staff through a remote system, so that the staff can find the problem in time and repair it, thereby avoiding the error problem of the flow detection meter during detection.

[0004] During the use of the flowmeter, the flow may fluctuate frequently in the actual working condition. Therefore, the performance of the flowmeter needs to be verified in the entire range of the flowmeter. If a single flow is used, the error of the flowmeter at some flow points may not be found, which will affect the accuracy of the flowmeter in actual application and may cause errors and losses in the production process.

[0005] Therefore, it is necessary to provide a flowmeter verification device to solve the above problems.

[0006] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the concept of the present application, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0007] Based on the above problems existing in the prior art, the application aims to provide a flowmeter verification device to solve the problem that the use of a single flow may cause the error of the flowmeter at some flow points to be not found.

[0008] The technical solution adopted by the application to solve the technical problems is a flowmeter verification device, which comprises:

[0009] A fixing frame;

[0010] A calibration mechanism is installed on the upper end of the fixed frame, and is used for calibrating the flow meter.

[0011] An adjusting mechanism is installed on the water pipe, and is used for adjusting different flow rates.

[0012] A base is installed on the water pipe.

[0013] A valve rod is installed on the base, and one end of the valve rod extends to the inside of the water pipe.

[0014] A valve plate is installed on one end of the valve rod.

[0015] An arc plate is installed on the other end of the valve rod.

[0016] A sliding groove is installed on the arc plate.

[0017] A positioning bolt is installed on the base.

[0018] Further, the valve plate is matched with the inner diameter of the water pipe, and the other end of the arc plate is fixedly provided with a handle.

[0019] Further, the arc plate is provided with a scale at the position of the sliding groove, and the positioning bolt is arranged through the sliding groove.

[0020] Further, a plurality of stands are arranged on the fixed frame, the upper end of each stand is fixedly provided with a clamp, the water pipe is clamped between the clamps, one side of the upper end of the fixed frame is fixedly provided with a water tank, the inside of the water tank is provided with a water pump, and the input end of the water pipe is connected with the output end of the water pump through the water tank.

[0021] Further, the other side of the upper end of the fixed frame is fixedly provided with a platform, and the platform is used for placing the flow meter to be measured.

[0022] The flow meter calibration device provided by the application can adjust the flow rate.

[0023] In addition to the above-described objects, features and advantages, the application has other objects, features and advantages. The application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings constituting a part of the specification of the application are used to provide further understanding of the application, and the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application.

[0025] In the drawings:

[0026] Figure 1 It is the whole schematic diagram of a flowmeter calibration device in the application;

[0027] Figure 2 It is Figure 1 The cross-sectional schematic diagram of the adjusting mechanism;

[0028] In the drawings, various reference signs:

[0029] 1, fixed frame; 2, calibration mechanism; 20, stand; 21, clamp; 22, water pipe; 23, water tank; 24, flowmeter to be measured; 25, platform; 3, adjusting mechanism; 30, valve plate; 31, valve rod; 32, base; 33, arc plate; 34, handle; 35, sliding groove; 36, positioning bolt. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] In order for those skilled in the art to better understand the application scheme, the technical solutions in the embodiments of the application will be described clearly and completely below in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the application.

[0032] As Figure 1 The application provides a flowmeter calibration device, which is mainly installed on a calibration platform and is used for calibrating a flowmeter. Specifically, the flowmeter calibration device comprises a fixed frame 1 fixedly installed on the calibration platform and a calibration mechanism 2 arranged on the fixed frame 1. The calibration mechanism 2 compares the known rated fluid flow with the reading of the flowmeter to be calibrated, so as to calibrate the flowmeter.

[0033] The calibration mechanism 2 comprises a plurality of groups of stands 20 fixedly arranged on the fixed frame 1, and clamps 21 are fixedly arranged on the upper ends of the stands 20. A water pipe 22 is arranged between the clamps 21 and is used for transporting fluid.

[0034] And the upper end of the fixed frame 1 is fixedly provided with a water tank 23, which is used for temporarily storing the fluid required for calibration, and a water pump (not shown in the figure) is arranged inside the water tank 23, and the input end of the water pipe 22 penetrates the water tank 23 and is connected with the output end of the water pump, so that the fluid can be pumped into the water pipe 22 for transportation and use by the water pump during calibration;

[0035] Meanwhile, the other side of the upper end of the fixed frame 1 is fixedly provided with a platform 25, the upper end of which is used for placing the to-be-tested flowmeter 24, and the to-be-tested flowmeter 24 is fixedly connected with the output end of the water pipe 22;

[0036] Therefore, when the to-be-tested flowmeter 24 needs to be checked, the preset rated water flow can be pumped out from the water tank 23 by the water pump, and then the rated water flow is guided into the to-be-tested flowmeter 24 through the water pipe 22, at this time the to-be-tested flowmeter 24 measures the flow and outputs the corresponding reading, and finally the measurement error of the to-be-tested flowmeter 24 can be calculated by comparing the reading of the to-be-tested flowmeter 24 with the rated water flow.

[0037] In order to prevent the error of the to-be-tested flowmeter 24 at some flow points from being found, an adjusting mechanism 3 is arranged at one end of the water pipe 22 close to the flowmeter 24, which verifies the measurement accuracy of the to-be-tested flowmeter 24 at different flow points by dynamically adjusting the water flow, as shown in the figure. Figures 1-2 The adjusting mechanism 3 includes a base 32 fixedly arranged at the upper end of the water pipe 22, and a valve rod 31 rotatably arranged at the upper end of the base 32, and one end of the valve rod 31 penetrates the water pipe 22 and extends into the interior of the water pipe 22 to form an extending end, and a valve plate 30 is fixedly arranged on the extending end, so that the valve rod 31 can be rotated to rotate the valve plate 30 in the water pipe 22, and the size of the valve plate 30 matches the inner diameter of the water pipe 22, so as to control the flow in the water pipe 22 later;

[0038] And in order to adjust the flow, an arc plate 33 is fixedly arranged at the other end of the valve rod 31, and a handle 34 is fixedly arranged at the other end of the arc plate 33, so that the staff can rotate the handle 34 to drive the arc plate 33 to rotate synchronously with the valve plate 30;

[0039] Meanwhile, a sliding groove 35 is formed in the arc plate 33, and a scale is marked at the position of the sliding groove 35, which is used to correspond to different angles of the valve plate 30 in the water pipe 22, so that the water flow in the water pipe 22 can be changed by changing the angle of the valve plate 30 in the water pipe 22, and then the required water flow can be determined by observing the scale;

[0040] And the base 32 is provided with a positioning bolt 36 threaded, the positioning bolt 36 is arranged through the sliding slot 35, so that the arc plate 33 can be driven to rotate along the sliding slot 35 by rotating the handle 34;

[0041] When the water flow in the water pipe 22 needs to be adjusted, the arc plate 33 can be driven to rotate along the sliding slot 35 by rotating the handle 34, at this time the valve plate 30 rotates synchronously with the arc plate 33, until the positioning bolt 36 points to the corresponding scale on the arc plate 33, and then the rotation is stopped, at this time the valve plate 30 presents a corresponding angle in the water pipe 22, so as to block the water flow through the angle of the valve plate 30 in the water pipe 22, thereby achieving the purpose of adjusting the water flow in the water pipe 22;

[0042] At the same time, in order to lock the valve plate 30, when the appropriate angle is rotated, the arc plate 33 can be locked by rotating the positioning bolt 36 close to the arc plate 33, so as to lock the position of the valve plate 30, so as to smoothly calibrate the flowmeter to be tested, when the angle needs to be changed, only the positioning bolt 36 needs to be rotated away from the arc plate 33 to unlock, at this time the valve plate 30 can be driven to change the angle by rotating the handle 34 to adjust the flow.

[0043] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flow meter calibration device, characterized in that: include: Fixture (1); A calibration mechanism (2) is installed on the upper end of the fixed frame (1). The calibration mechanism (2) is used to calibrate the flow meter. The calibration mechanism (2) has a water pipe (22). A regulating mechanism (3) is installed on the water pipe (22) and is used to regulate different flow rates. The regulating mechanism (3) includes: A base (32) is mounted on the water pipe (22); A valve stem (31) is mounted on the base (32), one end of which extends through the water pipe (22) into the interior; A valve plate (30) is mounted on one end of the valve stem (31); An arc plate (33) is mounted on the other end of the valve stem (31). A slide (35) is mounted on the arc plate (33); A positioning bolt (36) is mounted on the base (32).

2. The flow meter calibration device according to claim 1, characterized in that: The size of the valve plate (30) matches the inner diameter of the water pipe (22), and a handle (34) is fixedly provided at the other end of the arc plate (33).

3. The flow meter calibration device according to claim 1, characterized in that: The arc plate (33) is provided with a scale at the position of the slide groove (35), and the positioning bolt (36) is provided through the slide groove (35).

4. The flow meter calibration device according to claim 1, characterized in that: The fixed frame (1) is provided with multiple sets of columns (20), and the upper end of the column (20) is fixedly provided with clamps (21). The water pipe (22) is clamped between the clamps (21). A water tank (23) is fixedly provided on one side of the upper end of the fixed frame (1). A water pump is provided inside the water tank (23). The input end of the water pipe (22) passes through the water tank (23) and is connected to the output end of the water pump.

5. The flow meter calibration device according to claim 1, characterized in that: A platform (25) is fixedly installed on the other side of the upper end of the fixed frame (1), and the upper end of the platform (25) is used to place the flow meter (24) to be tested.

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